Marking machine



Oct. 28, 1941.

D. F. PUTNAM MARKING MACHINE Filed Feb. 3, 1940 s Sheets- Sheet 1 \nvenffo rs. Charles E Robbins DcwidEFuT nqm "Chufles H.Cheesqfnun v ATT Oct.28, 1941.

D. F. PUTNAM ,ET AL MARKING MACHINE Filed Feb. 3, 1940 s Shets-Sheet '2I lnvenTors. Chufles F Robbins DuvidEPuTnom v Chufles H.Che

esemon 2f Patented Get. 28, 1941 UN TED MARKING MACHINE,

David F. Putnam and Charles F. Robbins, Keene,v

and Charles H. Cheescman, Marlboro, N. H., assignors to Markem MachineCompany, Keene, N. H., a corporation of NewHampshir-e ApplicationFebruary s, 1940, Serial No. 317,170

16 Claims. (or. 101-477) This invention relates to a marking machine orprinting machine of the type which operates on the transfer or offsetmethod, and which comprises a type member or pattern member and atransfer or offset roll which receives its ink impression from the typemember and which is separable from the machine and is adapted to bemanually removed from the machine and rolled over the work to transferthe ink impression thereto.

One of the objects of the present invention is to provide a machine ofthis type which is so constructed that each time the transfer roll isinserted into the machine, to receive an ink impression, said inkimpression will always be laid in the same position on the transfer rollso that the successive ink impressions on said roll will registerexactly with each other. This insures that the ink impression carried bythe transfer roll will always be sharp and clear-cut and obviates thenecessity of cleaning the roll after each operation in order to obtain asharp clear-cut printed impression on the work.

This object is attained by providing means for giving the type member orpattern member: a. cyclic movement, that is, a movement through a pathwhich begins and ends at the same point, and further providing means forpositively driving the transfer roll when it is. in engagement with thetype member to receive its ink impression, and further providing meanswhereby the transfer roll can be inserted into its operative position inthe machine. or can be removed therefrom only when said roll is in apredetermined angular position.

A further object of the invention is to provide a machine of this typeby which a plural-color ink impression can be laid on the transfer rolland thus transferred to the work. For this purpose, we propose toprovide a machine having a plurality of separate type-carrying members,each carrying type characters comprising a part of the final printedimpression and to provide means for inking the type on the type memberswith inks of different color. The machine is so constructed thatwhen themanually manipulated transfer roll is placed in the machine and thelatter is set in operation,- each type-carrying member will operate todeposit on the transfer roll an ink impression of a color difierent fromthat made by the other type-carrying members, the several differentlycolored ink impressions being so deposited on the transfer roll relativeto each other as tomake a complete plural color ink impression which isthe reverse of the final the article to be printed.

impression to be printed. When the transfer roll has thus received itsplural color impression, it is removed from the machine and rolled overthe object to be printed, thereby leaving on said object the pluralcolor imprint.

In order to give an understanding ofthe invention, we have illustratedin the drawings a selected embodiment thereof which will now bedescribed, after which the novel features will be pointed. out in theappended claims.

Inthe drawings: Fig. lis a front View of a machine embodying ourinvention.

Fig. 2 is a section on the line 22, Fig. 1.

I Fig. 3 is a fragmentary detail showing the driving, spindle for thetransfer roll.

0 Fig. 4"isaside view of the transfer roll and its holder. a

Fig. 5. is a section on the line 55, Fig. 1. Fig. 6 is av fragmentaryview illustrating means for driving the ink rolls.

7 '7- is a perspective view of the transfer roll.

Fig- 8 is a fragmentary perspective view of the clutch end of thespindle for driving the transfer roll.

Fig 9 is a diagrammatic View illustrating the manner in which the ink.impressions are made ohthe transfer roll.

Fig. 10 is a view illustrating the use of the transfer roll in makingthe printed impression on Fig. 11 is a view illustrating a two-colorimprint which can be made with the machine herein described.

Fig. 12.is a diagrammatic view illustrating the driving means for themachine. I

In. order-to illustrate the invention, we havechosen to show it asembodied in a machine designed to. make a two-color imprint, but wedesire to state that the invention may be embodied in amachine capableof making an imprint of 7 three for more colors.

' InFig. 11 we have shown an illustrative imprint which consists of thelegend A. B. Co.,'

indicated at l, surrounded by an elliptical border 2.. With our improvedmachine it is possible to make at one operation a printed impressionsimilarto. that illustrated in Fig. 1-1 in which the.

A. B..Co. will be printed in one color and the elliptical border in adifferent color.

As stated above, this is accomplished by employing two type-carryingmembers, herein shown as rotatable members, one of which carries typecharacters corresponding to, that part of the final printed impressionwhich is in one color and the other type-carrying member carrying typecharacters corresponding to the part of the final printed impressionwhich is in the other color. In the illustration shown in Fig. 11, onerotatable type-carrying member would have type thereon for printing thelettering A. B. 00., and the other type-carrying member would have typethereon adapted to make a printed impression of the elliptical border 2.The type carried by the two type-carrying members may be inked withdifferently colored ink, and the machine is so constructed that whenthetransfer roll ismanually inserted into the machine, eachtype-carrying member makes an ink impression on the surface of thetransfer roll, the two ink impressions having the same relativearrangement on the transfer roll as they are to have in the finalprinted impression.

The transfer roll is then removed from the machine and is rolled overthe surface of the object to be marked, thereby leaving on the surfacethe two-color printed impression.

*The two rotatable type-carrying members are indicated at 3 and 4respectively, said members being in the form of rolls carried by shafts5 and 6 which are suitably mounted in the supporting frame indicatedgenerally at I.

The roll 3 will carry type corresponding to the part of the finalprinted impression which is to be printed inbne color, for instance theletters A. B. Co. in the illustration given in Fig. 11, and thetype-carrying roll 4 will have on its periphery a type characterdesigned to print the border- 2 of the final printed impression. Themanually operated transfer roll which receives the ink impressions fromthe two typecarrying rolls 3 and 4 and by which the impression isconveyed to the article to be marked is indicated at 8; This roll isseparable from the machine andis carried in a suitable holder 9 having ahandle ID by which it may be manipulated manually to place the transferroll in the machineto receive an ink impression and to remove the rollfrom the machine and operate it to transfer the ink impression to theWork.

Referring now to Fig. 1, the two shafts 5 and 6 -which support thetype-carrying members 3 and 4 are shown as mounted intwo'bearingbrackets II and I2Which are provided with bearingsl3 and I4for the shafts. These bearing brackets are illustrated as carried by anddepending from an overhanging arm I5 with which the frame] is provided.Each bearing bracket is shown as having ahead portion I6 at its upperend which partiallyembraces the lower edge of the overhanging arm I5,the latter being provided at'each side with a laterally extending riborflange'll to which the head members I6 are clamped. Each head memberis .provided with a clamping plate I8 which overlies the rib I1 and isclamped to the head I6 by clamping bolts I9. This provides aconstruction by means of which the'bearing brackets II and I2 can beadjusted longitudinally of the arm I5 if desired.

Means are provided for rotating the shafts 5 and 6, thereby to rotatethe type-carrying mem-' bers 3'and 4, and such means includes aonerevolution'clutch device designed to bring the shafts to rest afterthey have each made one complete rotation. The type-carrying membersreservoirs 26, 21,

ing shaft 29 which carries at its enda gear 2| that meshes with a gear22 fast on the shaft 5 and also with a gear 23 fast on the shaft 6. Thetype-carrying members 3 and 4 are thus rotated in the same direction andat the same speed.

Any suitable one-revolution clutch device may be used for controllingthe machine. The gear 2| on the driving shaft 29 has such a sizerelation to the gears 22, 23 that two rotations of the shaft 20 will berequired to give one rotation to the gear 22 or the gear 23. Hence ateach operation of the machine, the driving shaft 20 will make tworevolutions. In order to provide for this, theshaft 20 is shown ashaving fast thereon a gear 9| which meshes with a, gear 92 having twicethe size of the gear 9|, and the gear 92 may be mounted on a power shaft93 and connected to said shaft 93 through a suitable onerevolutionclutch device, indicated diagrammatically at 94 in Fig. 12, said clutchdevice being provided with an operating connection 95 leading to asuitable treadle. When the treadle is actuated, the clutch .94 will beoperated to engage the gear 92 with the power shaft 93, and will alsooperate to unclutch the gear 92 from the power shaft when said gear hasmade one revolution. This one revolution of the gear 92 will produce'therequired two revolutions of the shaft 29 and gear 2| which is necessaryto give one; type-carrying rolls revolution to each of the Band 4. I

"Inasmuch as any suitable one-revolution clutch may beemployed, we havenot thought it necessary to' illustrate said clutchin any greater detailthan in the diagrammatic view, Fig. 12.

' Any suitable means may be employed for supplying ink of the desiredcolor to'the type characters '24, '25, on the two type-carrying rolls 3and 4. As shown in Fig.

secured to the bracket II of the frame' 1, each reservoir having an inkroll by which the type characters on the corresponding type-carryingmember is inked. These ink rolls are indicated at 28 and 29respectively. Each T ink .rolli-is preferably positively driven so as torotate at the same surface speed as the type mer'nberto which itsupplies ink, so that the inking ofthe type characters is accomplishedby a rolling contact between them and the ink roll.

' 1 The ink roll 28 for the reservoir 26 is fast on a sha'ft ,39, andthis shaft is connected by a train of gearing to the gear 22, by whichthe typecarrying member 3 is rotated. Such train of gearing comprises agear 3| fast on the ink roll 1 shaft 30 whichmeshes with an intermediategear 32,1the latter meshing with a of theshort' shaft 34, which otherend agear 35 gear 33 on one end shaft carries at its that meshes withthe gear 22. The'shor't shaft 34 is supported in suitable bearings '36carried by the bearing bracket II, and the intermediate gear 32 may bemounted on a studshaft 31 also carried by saidbearing bracket? II.

.A'similar systemof'ge'aring is employed for connecting the gear 23 onthe shaft 6 to the shaft 38 carrying the ink roll 29.

The machine is provided with suitable means for supporting the removabletransfer roll in an v operative position to receive anink impressionthrough a path which begins and ends at the 1 same point.

. .Thetwo shafts 5 and 6;are driven from a 'dIiV-r from the type on eachof the type-carrying rolls Siam-4. l Y i The transfer roll 8 hasafsurface of rubber,

neoprenefor any other suitable material which will're ceive a good inkimpression from, the type. characters 24 and 25 and which will transfer2, there are two ink such impression to the article to be'marked Thistransfer roll is fast on a supporting shaft 39 which is somewhat longerthan the roll 8 and which is rotatably mounted in the cheek pieces 49 ofthe holder 9. The ends 4|, 42 of the shaft 39 project beyond the cheekpieces 49 and form trunnions by which the roll and the holder issupported when it is placed in the machine. As stated above, the holder9 is also provided with a handle 49 'by which it and the roll carriedthereby can be manually manipulated to place it in the machine andwithdraw it therefrom.

- For removably supporting the transfer roll in the .m'achine in itsposition to receive an ink impression from the type-carrying rolls 3 and4, 1

there is provided a roll-supporting means comprising two supportingmembers 43, 44, which are spaced apart a distance to receive betweenthem the holder 9 and each of which is formed with two fingers 46, 41,forming between them an open-ended guiding slot into which theprotecting ends 41, 42 of the shaft 39 may be inserted. These supportingmembers 43, 44, are secured to blocks 48 which in turn are secured tothe bearing brackets ll and I2.

When the transfer roll with its holder 9 is inserted manually into themachine with the projecting ends 41, 42, of the shaft 39 occupying the:slots 45 and said holder is positioned in the machine with theprojecting ends 42, 43, of the shaft in engagement with the ends of theslots 45, as shown in Fig. 5, said transfer roll 8 will then bepositioned so that the type characters 24,25 on the type-carrying rolls3 and4 will contact therewith as the said type-carrying rolls arerotated.

Means are provided for rotating the transfer roll when it is thus placedin the machine to receive the printed impression, such means beingconstructed so that the transfer roll will rotate at the same surfacespeed as the type-carrying rolls 3 and 4, whereby as each type-carryingroll makes its rotation, the type thereon will leave an ink impressionon the surface of the transfer roll.

- This driving means for the transfer roll is so constructed that saidtransfer roll can be insorted into the machine or removed therefrom onlywhen it is in a predetermined angular position, and as a result, thesuccessive ink impressions which are made upon the transfer roll willall be in exact register so that even after the transfer roll hasreceived repeated ink impressions, the impression left thereon will besharp and clear-cut.

The transfer roll receives its rotation from a driving shaft 49 which isjournaled in one of the blocks 48, said shaft having a gear 59 thereonwhich meshes with an intermediate gear 5| that, in turn, meshes with thegear 2 I, the latter having a wide face to permit it to mesh both withthe gear 5| and with the gear 22 on the shaft 5.

A clutch device is provided for connecting the shaft 49 to the transferroll shaft 39, such clutch device being constructed so as to permit thetransfer roll to be readily inserted into the machine or withdrawntherefrom. The end of the driving shaft 49 is shown as having awedgeshaped clutch projection 52 which is adapted to fit into a taperedslot 53 with which the projecting end 42 of the transfer roll shaft 39is provided, such clutch projection 52 and the slotted end 42 of theshaft 39 constituting separable clutch members.

We have-stated above that the driving shaft 29 3 ends of "the slots 45.

is :driven through the medium of a clutch device constructed to bringthe shaft to rest after each operation at a predetermined position, andthis position is one in which the shaft 49 will always bestopped withthe wedge-shaped clutch projection '52 extending horizontally and withthe thin edge of said projection presented toward the front, as shown inFig. 3. If it be assumed that the transfer r0118 has the angularposition shown in Fig. '7 in which the wide end of the slot 53 isdirected away from the handle l0, then it will be understood that whenthe holder 9 for the transfer roll is "manually inserted into thesupporting members 43, with the trunnions 4!, 42 of ithe shaft 39entering said slots 45, the shaft 39 of the transfer roll will becomeautomatically clutched tor coupled to the shaft 49 by the movement ofthe holder '9 into a position in which the trunnions 41, 42, of thetransfer roll engage the Since the slotted end 42 of the transfer rollshaft 39 can only be coupled to the clutch projection 52 of the drivingshaft 49 when the shaft 39 is in a predetermined angular position, itfollows that the transfer roll can be inserted into the machine onlywhen it occupies a predetermined angular position. As a result, each inkimpression is laid on the transfer roll in exactly the same position,and successive ink impressions Will register exactly with each other.Hence the ink impression on the transfer roll will always be sharp andclear-cut, and it will not be necessary to clean the transfer roll aftereach operation in order to obtain a clearcut ink impression.

In using the machine, the operator grasps the handle 10 and inserts thetransfer roll into the machine with the trunnions 4|, 42 occupying theopen slots 45 of -the supporting members 43, 44, and :this operationwill automatically couple the shaft 39 of the transfer roll to thedriving shaft 49. The operator then starts the machine in operationwhich will cause the shafts 5 and 6 each, to make one revolution afterwhich the clutch will bring the machine to rest. During this revolution,the type characters 24, 25, are inked from the ink rolls, the typecharacters 24 being inked by ink of one color and type characters 25receiving ink of another color. During the single rotation of each ofthe type members 3 and 4, the transfer roll 8 is rotated through thedriving connections above described at the same surface speed as thetype-carrying rolls 3 and 4, and the type characters on each roll 3 and4 will during such single rotation make an ink impression on the surfaceof the transfer roll 8.

The relative location of the 'type characters 24xand 25 on thetype-carrying rolls 3 and 4 is such that the two ink impressions whichare made on the transfer roll 8 (one ink impression from each of thetype-carrying rolls 3 and 4) are so related that the complete impressionon the transfer roll corresponds to the impression which is to beprinted or marked on the article. For instance, if the final printedimpression is that illustrated in Fig. 11, then the type characters 24,,25, will have :such relative positions on their respective rolls thatthe two-color ink impression on the transfer roll 8 will be in the formof the iettering A. B. Go. inside of an elliptical border, the letters,of course, being reversed.

The gearing herein illustrated for driving the transfer roll is suchthat said roll will make two rotations for each rotation of the shafts 5or 6., and during such two rotations of the transfer roll, an inkimpression will be laid on the surface thereof by'each type-carryingroll. The onerevolution clutch 94 will bring the machine to restautomatically after the shafts 5 and 6 have each made one rotation andwith the driving shaft 49 in the position shown in Fig. 3. When themachine has come to rest, the operator withdraws the transfer roll.8from the machine and then, while still grasping the handle I0, rollssaid roll over the surface of the article 54 to be marked, therebyleaving a two-color printed im pression on the article 54.

In order that the successive ink impressions which are laid on thesurface of the transfer roll will exactly register with each other, saidroll is provided with means for bringing it to rest always in apredetermined angular position after it has been used for making aprinted impression on the article 54. As shown in Fig. 5, the roll 8 isprovided with a spring-pressed ball 55 in one side face which is adaptedto enter a recess 56 formed in one of the cheek pieces 40, The ball 55is backed by a suitable spring 51 which is seated in a recess 58 formedin the central portion of the roll 8. When this ball 55 is occupying therecess 55 the shaft 39 is positioned with its tapering slot 53 in theposition shown in Fig. 7.

The engagement of the ball 55 in the recess 56 is only suflicient tolightly hold the transfer roll from turning and is not sufiicient tointerfere with the rotation of the roll when it is applied to thesurface of the article 54 to be marked.

In marking the article 54, the operator will move the transfer roll overthe surface of the article until the roll has been given one completerotation and the ball 55 again clicks into its recess 55. The transferroll is then properly indexed to be re-inserted into the machine, inorder to receive another ink impression, and because rollcan only beinserted into the machine and coupled to its driving shaft 49 when saidroll has a predetermined angular position, it will follow that thesuccessive ink impressions which are laid on the surface of the roll 8will always register with each other and said roll will thus carry asharp clear-cut ink impression.

Our machine is particularly useful in applying a printed impression onthe surface of an article which cannot conveniently be placed in aprinting press or supported on the platen of a mark{- ing machine. Thereare many bulky articles on the surface of which it is desired to imprintsome legend descriptive of the machine, or the name of the manufacturer,or some trade mark designation, etc. With the machine hereinillustrated, the same impression of the legend which it is desired toimprint on such bulky article may be laid on the transfer roll and thenthe transfer roll may be removed from the machine and used as shown inFig. to transfer the ink impression to the surface of the bulky article54.

The holder 9 for the transfer roll is shown as having one of its cheekpieces 40 extended as indicated at 89, and this extension is providedwiththe laterally projecting stud 88 having a head 81.; This stud 88with its head may constitute a guiding projection to engage someportion.

of the article on which the imprint is to be made, and thereby to assistin correctly directing the movement of the transfer roll during themanual transfer of the printed impression to the article.

This guard projection of course, could only be usedxwith' articles thathave some portion with which the projectio'n'could cooperate.

While we have illustrated herein a-machine comprising two type-carryingrolls, each carrying'type characters representing a .part of thefinal'prlnted impression, yet the invention can also be embodied in amachine which includes only one type-carrying roll, or in-a machinehaving more than two type-carrying rolls. If the machine has only onetype-carrying roll, then said roll will, of course, carry typecorresponding tothe complete printed impression to be made. The feature.of the transfer roll, which is separable from the machine and can bemanually placed in the machine to receive the ink impression and canthen be manually removed from the machine and manually manipulated toapply this ink impression to the article to be marked, can be embodiedin a machine having one or more type-carrying rolls. By the term ink asherein used, we refer to-any printing or marking compound such as iscommonly used for marking different articles or making a printedimpression of any kind. Furthermore, while we have shown thetype-carrying member as a rotary member, yet the invention is notnecessarily limited to the use of a rotary member, as a type-carryingmember having any cyclic movement arranged so that the transfer rollwill have a positive rolling contact therewith may be used withoutdeparting from the invention.

An important feature of the invention is that when the machine isoperated, the type-carrying member always comes to rest in apredetermined position at the end of each cyclic movement, and thetransfer roll is so arranged that it can only be inserted into themachine to receive an ink impression when it is in a predeterminedangular position, thereby ensuring that all the ink impressicns whichthe transfer roll receives register exactly with each other.

We claim:

1. A marking machine comprising a rotatable type-carrying member havingtype characters thereon, means to ink the type characters, a transferroll, aho-lder in which the roll is rotatably mounted and which isseparable from the machine and is adapted for manual manipulation whenremoved from the machine, means for removably supporting the transferroll in the machine in operative position to receive an ink impressionfrom the type-carrying member, means for rotating the type-carryingmember, and means for rotating the transfer roll when it is in itsoperative-positiomsaid means including a clutch-which becomesautomatically coupled when the transfer roll is placed in its operativeposition, but which permits the transfer roll to be manually removedfrom the machine and to be manually manipulated to transfer the inkimpression to the work.

2.- A marking machine comprising two rotatable type-carrying members,each having thereontype characters to print part only of the im-- printthat is ultimately to be made, means to ink the type characters, atransfer roll, a holder in which the transfer roll is rotatably mountedand which is separatable fromthe machine and adapted for-manual'manipulation, means for removably supporting the holderin themachine with the transfer roll in an operative position to receive anink impression from each'typecarrying member, means for rotating thetypecarrying members, adriving shaft for the transferroll, anda'coupling for connecting said driving shaft to the transfer roll, saidcoupling comprising two separable coupling members capable of being.coupled or uncoupled onlywhen the transfer roll and the drivingshaft-occupy a predetermined angular position.

3. A marking machine comprising a plurality of rotatable type-carryingmembers, each member having type characters corresponding to a part ofthe imprint that isto be ultimately made, separate means to ink the typecharacters on each type-carrying member, means to rotate thetype-carrying members, a transfer roll separable from the machine andadapted for manual manipulation, means removably supporting saidtransfer roll in the machine in position to have an ink impressionlaidthereon by each typecarrying member as it is rotated, and meansoperative when the transfer roll is in the machine to rotate thetransfer roll simultaneously with and at the same surface speed as thetype-carrying members, whereby the type characters on each type-carryingmember will lay an'ink impression on the transfer roll, thetransfer-rollrotating means comprising a coupling having two separablecoupling members which can be separated to permit removal of thetransfer roll from the machine or coupled together as the transfer rollis inserted into the machine only when the transfer roll is in apredetermined angular position. I

4. A marking machine comprising two rotatable type-carrying members, onehaving type characters thereon corresponding to a part of the imprint tobe made and the other having type characters thereon corresponding tothe remainder of said imprint, means to rotate the typecarrying members,separate means to ink the type oneach type-carrying member, a transferr011 separable from the machine and adapted for manual manipulation,means for removably supporting the transfer roll in the machine inposition to receive an ink impression from each type-carrying member, adriving shaft for rotating the transfer roll, a clutch for automaticallycoupling said transfer roll to its driving shaft when the transfer rollis placed in the machine in position to relieve its ink impression, saidclutch comprising two separable clutch members, one carried by thedriving'shaft and the other rigid with the transfer roll and. removablefrom the machine therewith and a driving connection between the drivingshaft 'and the means for rotating the type-carrying members by which thetransfer roll is rotated at the same surface speed as the type-carryingmembers.

5. A marking machine comprising two rotatable type-carrying members, onehaving type characters thereon corresponding to part of the imprint thatis to be made and the other 'having type characters thereoncorresponding to the remainder of such imprint, separate means to .inkthe type characters on each type-c'arryingmember, a transfer rollseparable from the machine and adapted for manual manipulation, saidroll having trunnions, a support constructed to removably support saidtransfer roll by its "trunn'ions in the machine and in position toreceive an ink impression from the type characters on each type-carryingmemberas it rotates, a driving shaft for the "transfer roll, a clutchfor automatically coupling said driving shaft to one of the trunnions ofthe transfer roll when the. latter is placed in its support, and adriving connection between the driving shaft and the means for rotatingthe type-carrying members, by

which the transfer roll is rotated at the 'same surface speed as thetype-carrying members.

6. A marking machine comprising a frame, a

type-carrying member rotatably mounted therein and having typecharacters thereon, means to ink the type characters, a transfer roll, aholder therefor in which the transfer roll is rotatably mounted andwhich is separable from the machine, said holder having a handle bywhich it can be placed in the machine with the roll in an operativeposition to receive an ink impression from the type characters and canbe removed from the machine, said frame having open bearings in whichthe transfer roll is removably supported when in operative position,means for rotating the type-carrying member, and means operative whenthe transfer roll is in its operative position for rotating said roll,said means including a couplinghaving separable members which can becoupled together or uncoupled only when both the type-carrying memberand a transfer roll are in a predetermined relative angular position.

7. A marking machine comprising a frame, a type-carrying memberrotatably mounted therein and having type characters, means to ink thetype characters, a transfer roll, a holder therefor separable from themachine and having a handle by which it can be manually inserted intothe machine to place the transfer roll in an operative position toreceive an ink impression from the type characters and by which it andthe roll carried thereby can be removed from the machine, said transferroll having trunnions and said frame having open bearings to receive thetrunnions when the transfer roll is inserted into the machine, a drivingelement for the transfer roll, means to rotate both the type-carryingmember and said driving element, and a clutch for connecting thetransfer roll to the driving element comprising separable'me'mbers, oneof which is carried by the transfer roll, and which can be coupledtogether or uncoupled only when the type-carrying member and thetransfer roll are in a predetermined relative angular position.

8. A marking machine comprising a frame, a type-carrying memberrotatably mounted therein and having type characters, means to rotatesaid member, means to ink the type characters, a transfer roll, a holderin which the transfer roll is rotatably mounted and which is separablefrom the machine, said holder having a handle by which it can bemanually manipulated, means for removably supporting said holder in themachine with the transfer roll in an opera-tive position to receive anink impression from the type-carrying member, a driving shaft forrotating the transfer roll, a clutch which automatically couples thetransfer roll to the driving shaft when the holder is placed in themachine but which permits the holder to be removed from the machine, anddriving connections between said driving shaft and the means to rotatethe type-carrying member.

9. A marking machine-comprising a frame, a type member mounted thereon,means to ink the same, means to give the type member a cyclic movementand bring it to rest in apredetermined position .at the end of suchmovement, a transfer roll, a holder in which the transfer roll isrotatably mounted and which is separable from the frame, the latterhaving means for removably supporting the transfer roll inoperativeposition to receive an ink impression from the type member,said holder and transfer roll, when removed from the frame, beingadapted 'for manual manipulation to transfer the ink impression from theroll to the work, and means actuated by the type-mem'ber-moving meansfor rotating the transfer roll when it is in its operative position,said means including a coupling comprising two separable couplingmembers, one of which is mounted on the holder, which coupling memberscan be operatively coupled together as the transfer roll is introducedinto the machine only when the type member is in its predeterminedposition of rest.

10. A marking machine comprising a frame, a type member mounted thereon,means to ink the same, means to give the type member a cyclic movementand bring it to rest in a predetermined position at the end of suchmovement, a transfer roll, a holder in which the transfer'roll isrotatably mounted and which is separable from the frame, the latterhaving means for removably supporting the transfer roll in operativeposition to receive an ink impression from the type member, said holderand transfer roll, when removed a from the frame, being adapted formanual maanipulation to transfer the ink impression from the roll to thework, and means actuated by the type-member-moving means for rotatingthe transfer roll when it is in its operative position, said meansincluding a coupling comprising two separable coupling members, one ofwhich is mounted on the holder, which coupling members can beoperatively coupled together as the transfer roll is introduced into themachine and can be uncoupled to permit removal'of the transfer roll fromthe machine only when said type member is in its predetermined positionof rest.

11. A marking machine comprising a frame, a

type member mounted thereon, means to ink the same, means to give thetypemember a cyclic movement and bring it to rest in a predeterminedposition at the end of such movement, a transfer roll, a holder in whichthe transfer roll is rotatably mounted and which is separable from theframe, the latter having means for removably supporting the transferroll in operative position to receive an ink impression from the typemember, said holder and transfer roll, when removed from the frame,being adapted for manual manipulation to transfer the ink impressionfrom the roll to the work, and means actuated by the type-member-movlngmeans for rotating the transfer roll when it is in its operativeposition, said means including a coupling comprising two separablecoupling members, one of which is mounted on the holder, which couplingmembers can be operatively coupled together as the transfer roll isintroduced into the machine only when the transfer roll has apredetermined angular position in its holder.

12. A marking machine comprising a frame, a rotatable type membermounted therein, means to ink the type member, means to rotate the typemember and bring it to rest in a predetermined angular position aftereach rotation, a transfer roll, a holder in which the transfer roll isrotatably mounted and which is separable from the frame, the latterhaving means for removably supporting the transfer roll in an operativeposi tion to receive an ink impression from the type member, saidholder, when removed from the frame, being capable of manualmanipulation to roll the transfer roll over the work and thus transferthe ink impression thereto, and means actuated by thetype-member-rotating means for rotating the transfer roll when it is inits operative' position, said means including a coupling comprising twoseparable coupling members, one of which is mounted on the holder, whichcoupling members can be operatively j coupled together as the transferroll is introduced into the machine only when the type member is in itspredetermined position of rest.

13. A marking machine comprising a frame, a rotatable type membermounted therein, means to ink the type member, means to rotate the typemember and bring it'to rest in a predetermined angular position aftereach rotation, a transfer roll, a holder in which the transfer roll isrotatably mounted and which is separable from the frame, the'latterhaving means for removably supporting the transfer roll in an operativeposition to receive an ink impression from the type member, said holder,when removed from the frame, being capable of manual manipulation toroll the transfer roll over the work and thus transfer theink'impression thereto, and means actuated by the type-member-rotatingmeans for rotating thetransfer roll when it is in its operativeposition-said means including a coupling comprising two separablecoupling members, one of which is mounted on the holder, which couplingmembers can be operatively coupled together as the transfer roll isintroe duced into the machine only when the type member is in itspredetermined position of rest and the transfer roll has a predeterminedangular position relative to that of the type member.

14.-A marking machine comprising a pattern member, means to ink thesame, a transfer roll, aholder in which the roll is rotatably mountedand which is separable from the machine and is adapted for manualmanipulation when removed from the machine, means for removablysupporting the transfer roll in the machine in operative position toreceive an ink impression from the inked pattern member, and means. toproduc a rolling surface engagement between the pattern member and thetransfer roll when the latter is in such operative position, thereby tolay an ink impression on the transfer roll, I

said means including a separable driving connection which permits thetransfer roll to be withdrawn from the machine or inserted thereintoonly when said transfer roll is in a predetermined angular positionrelative to the pattern member.

15. A marking machine comprising a pattern member, means to ink thesame, a transfer roll, a holder in which the roll is rotatably mountedand which is separable from the machine and is adapted for manualmanipulation when removed from the machine, means for removablysupporting the'transfer roll in th machine in operative position toreceive an ink impression from the pattern member, and means for givingthe pattern member and the transfer roll a relative movement duringwhich said transfer roll has a rolling contact with the pattern memberand thereby receivesfrom the latter an ink imp-ression, said meansincluding a driving connection having two separable members, one ofwhich is carried by the transfer roll, which separable members can onlybe separatedto permit removal of the transfer roll from the machine andcan only be coupled to permit insertion of the transfer roll into themachine when the transfer roll has a predetermined angular relation tothe pattern member.

16. A marking machine comprising a rotatable pattern member, means toink the same, a transfer roll, a holder in which the transfer roll isrotatably mounted and which is separable from ing connection includingtwo separable driving elements which can only be separated to permitmanual removal of the transfer r011 from the machine and can only becoupled by the insertion of the transfer roll into the machine when saidtransfer roll has a predetermined angular position with relation to thepattern mem-' ber.

DAVID F. PUTNAM. CHARLES F. ROBBINS. CHARLES H. CHEESEMAN.

CERTIFICATE OF CORRECTION Patent No. 2,260,)4.00. October 28, l9l l.

DAVID F. PUTNAM, ET AL. It is hereby certified that error appears in theprinted specification of the above nmr lbered patent requiringcorrection as follows: Page 5, first column, line 1414., claim for theword "relieve" read receive; and that the said Letters Patent should beread with this correction therein that the same may conform to therecord of the case vin the Patent Office.

Signed and sealed this 2nd day of December, A. D. 19 41.

Henry Van Arsdale,

(seal) Acting Commissioner of Patents.

